² tn Heb “your good spirit.” God’s “spirit” may refer here to his presence (see the note on the word “presence” in Ps 139:7) or to his personal Spirit (see Ps 51:10).

² sn This may refer to the “angel of God” mentioned in Exod 14:19, who in turn may be identical to the divine “presence” (literally, “face”) referred to in Exod 33:14-15 and Deut 4:37. Here in Isa 63 this messenger may be equated with God’s “holy Spirit” (see vv. 10-11) and “the Spirit of the Lord” (v. 14). See also Ps 139:7, where God’s “Spirit” seems to be equated with his “presence” (literally, “face”) in the synonymous parallelistic structure.